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System of Measurement System of Measurement |
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Drill Bit Size Drill Bit Size | Show |
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Drill Bit Size Drill Bit Size | Hide |
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Decimal Size Equivalent Decimal Size Equivalent |
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For Use On For Use On |
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Shank Type Shank Type |
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| Reduced Round | Hex |
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| Morse Taper | 3-Flat |
Point Style Point Style |
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| Standard |
Bit Style Bit Style |
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| Spiral Flute | Multidiameter |
Length Class Length Class |
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| Reduced Shank Length |
Material Material |
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Finish Finish |
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Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flute Direction Flute Direction |
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| Right Hand |
Point Angle Point Angle |
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Morse Taper Number Morse Taper Number |
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Morse Taper Diameter Morse Taper Diameter |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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1/2" Diameter Reduced-Shank Drill Bits
Black Oxide
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
For technical drawings and 3-D models, click on a part number.
Shank | Drill Bits | ||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | For Use On | Point Style | Each | |
Metric | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 30.0 mm | 1.1811" | 152mm | 53.3mm | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
Morse Taper | |||||||||||
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| Drill Bit Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 30.0 mm | 1.181" | 3 | 0.938" | 296mm | 120mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
High-Speed Steel Multidiameter Drill Bits
Black Oxide
Uncoated
Steps with progressively larger diameters let you drill a range of sizes with one bit. Also known as step drills.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
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| Drill Bit Size | Decimal Size Equivalent | No. of Sizes | Overall Lg. | For Max. Material Thick. | Type | Size | Point Style | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm, 22.0 mm, 24.0 mm, 26.0 mm, 28.0 mm, 30.0 mm, 32.0 mm | 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811", 1.2598", 1.378" | 15 | 89mm | 2mm | 3-Flat | 9.53mm | Standard | Steel, Hardened Steel, Tool Steel, Iron, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
Uncoated High-Speed Steel | ||||||||||
| 20.0 mm, 22.0 mm, 24.0 mm, 26.0 mm, 28.0 mm, 30.0 mm, 32.0 mm, 34.0 mm | 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811", 1.2598", 1.3386" | 8 | 54mm | 5mm | Hex | 11.1mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |